If there is a requirement where you want to create multiple shipping categories in Oscommerce that a user can select like
No Shipping : $0.00
Flat Rate Manhattan: $25.00
Flat Rate Overnight Manhattan: $30.00
Then just follow the steps given below:
Create copy of “flat.php” Ex: flat2.php,flat3.php in
catalog\includes\modules\shipping and
catalog\includes\languages\english\modules\shipping.
Open catalog\includes\languages\english\modules\shipping\flat2.php and replace lines with the following.
define(‘MODULE_SHIPPING_FLAT2_TEXT_TITLE’, ‘Flat Rate 2’);
define(‘MODULE_SHIPPING_FLAT2_TEXT_DESCRIPTION’, ‘Flat Rate 2’);
define(‘MODULE_SHIPPING_FLAT2_TEXT_WAY’, ‘Best Way 2’);
Open catalog\includes\modules\shipping\flat2.php replace term flat with flat2 and MODULE_SHIPPING_FLAT with MODULE_SHIPPING_FLAT2.
Thats it..now upload to respective Southfayettenursing roulette directory. Go to Admin section and enable new shipping modules.